Details: name of items specification qty.glass slab 75mm ± 5mm x 50mm ± 5mm x12mm ± 2mm clearand bubble free4glass prism 38 mm ± 5mm equilateral clear and bubble free 6magnetic compass 90mm ± 5mm abs plastic one side transparent withpaper/plastic printed dial6bar magnet 50mm ± 5mm alnico pair with metallic keeper 4drawing boards 300 ± 10mm x 450 ± 10mm x12mm ± 2mm (softwood)4spring balance 500 gm cap. tubular plastic body transparent 6stop clock with start stop &fly back actiondial size approx. 100mm, divided in 0-60 x 1 sec 1resistance box plug type 0- 5000 ohms fitted with brass plugs reading values1, 2, 2, 5, 10, 20, 20,50, infinity,100, 200,200,500,1000, 2000, 2000,5000 ohms. total 17plugs.(tolerance in resistivity 5%). plugs with plasticheads, contact blocks made of brass which is fitted onbakelite / hylem / plastic base. the whole assemblyfitted on an appropriate polished wooden box1optical bench, one meter long, double ms chrome plated rod dia15mm ±1mms, four uprights (two having slowtra
Sector: School